398 ALASKAN GLACIER STUDIES H. L. Wilson, Jr., who was passing Childs Glacier in the spring of 1898, corroborates the testimony of the guide Rafferty that the glacier then reached the river. His description is as follows: "On June 12 we were just below the Childs Glacier, on the right bank of the river. At 4:80 a. m. we commenced to line our boats past the glacier. Here the river is composed of one stream and, in places, runs very swift. It is about one-fourth of a mile wide. The glacier at this time of the year is along the water's edge. It is about a mile and a half long and 150 feet high. It is supposed to be moving forward. The opposite side or bank is a long rocky beach. When the glacier "dumps" it throws a swell varying in size to the amount of ice that falls. We sent our first two boats up on the rocky beach, and another was swamped at the water's edge. ... It took a swell about three minutes to reach us after the ice had fallen, the second or third swell being the larger and stronger. FIG. 58. MILES, CHILDS, AND GBINNBILL GLA.CTEBS IN 1900. Contour interval 200 feet (After D. C. Witherspoon, U. S. Geol. Survey). On the third trip one of our boats was thrown so high and dry that the men on the lines, nine in number, were in water over their heads and were obliged to cling to the large bowlders to keep from being washed into the stream with title receding waters. " * In October, 1900, two Geological Survey parties went down the Copper River past Childs Glacier, and Witherspoon made a very good topographic map of it.a His map (Kg. 58), as well as photographs taken by A. C. Spencer at about the same time, show Childs Glacier surface and profile, and also its front in Copper River essentially as in 1909. Since 1900 many photographs of Childs Glacier have been taken by surveyors, geologists, prospectors, tourists, and others, in connection with trips up and down Copper River. Among these may be mentioned the photographs by Webster Brown in August, 1905, the winter photographs of Childs Glacier cliff by J. L. McPherson in January, 1906, ., Jr., Copper River Exploring Expedition, 1899, Washington, 1900, p. 50. * Geology and Mineral Resources of a Portion of the Copper River District, House Doc. 546, 56th Congress, 2nd Session, Washington, 1900, Plate IE; map repuhlished as PI. I, Bull. 374, U. S. Geol. Survey, 1909, and as Chitina Quadrangle.